Thread-cutting shuttle



w. M. ROSSITER.

THREAD CUTTING SHUTTLE.

. APPLICATION FILED FEB. 3,1921.

Patented Oct. 11, 1921.

gwuzntoz UNITED STATES WILLIAM M. Rossrrna, or SUNBURY, rENNSYLVnNIgt.

THREAD-CUTTING SHUTTLE.

Application filed February 3, 1921.

To all whom it may concclw: 7

Be it known that I, VJILLIAM M. Rossrrnn, a citizen of the United States, residing at Sunbury, in the county of Northumberland and State of Pennsylvania, have invented certain new and useful Improvements in Thread-Cutting Shuttles, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in shuttles for looms and the like, and the object of the invention is the improvement in the construction of thread-cutting means on a shuttle.

Another object of the invention is the production of simple and efficient cutting means attached directly to the threading device in a shuttle.

Vith these and other objects in view, my invention comprises certain novel combinations, constructions and arrangements of parts as will be hereinafter described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings:

Figure l is a top plan view of a shuttle, showing the threadingdevice therein, whlle Fig. 2 is a side view of the shuttle shown in Fig. 1.

Fig. 3 is. a sectional view, taken online 33, F 1, and looking in the direction of the arrows.

Fig. 4. is a view, in side elevation, of the threading device with my cutting device secured thereto, while.

Fig. 5 is a front view of the same.

Fig. 6 is a sectional view, taken on line 6=.-6, Fig. 5, and looking in the direction of the arrows.

Fig. 7 is a perspective view of my cutting device.

Referring to the drawings by numerals, l designates the shuttle body, and 2 is the threading device common in the art; it will be understood that this threading device is retained within the shuttle body, as shown clearly in Fig. 3.

The original threading, device has been machined to provide a pair of depending, guiding lugs 3 and 3, Figs. 3 to 5. A stationary guide l is fastened, at 5, to the lower portion of the threading device (Fig. i) and its upper end is fastened to lug 3.

My cutting device includes a stationary plate or frame 6 and a swinging guide 7.

Specification of Letters Patent.

Patented Oct. 11, 1921.

Serial No. 442,190.

The frame 6 lies fiatagainst the side of the threading device (Figs. i and 6) and is fastened thereto by means of a screw 8 passing through aperture 9 of the frame, and screwed into the body'of the threading device. On the inner end of the frame 6 is a right-angularly-disposed knife blade 10, which blade is positioned over the outer end of the filling thread passage 11 of the threading device 2; the filling thread 12 passes through the thread passage 11, contiguous to the knife blade 10, on frame 6, and is threaded through the eyelet 13 of the spring metallic swinglng guide 7 this guide 7 is fastened by rivet l i, to the outer end of the stationary frame (5. The eyelet 13 has an open guide passage 13, whereby in threading the shuttle, the thread 12 can be quickly positioned in the eyelet 13.

The knife blade 10 is held rigid upon the threading device, but the swinging guide 7 is adapted to permit the rightangularlydisposed eyelet portion 13" to swing laterally when undue strain is placed upon the thread 12; the eyelet portion 18" is positioned behind the stationary guide 4. as well as behind the depending lugs 3 and 3", whereby in handling the threading device, as when examining the same, or when it is being placed in the shuttle body 1, the delicatelymounted swinging guide will be protected against injury.

The threading device is slightly cutaway, at 15, to form lugs 8 and 3, and when the wire stationary guide i is attached, whereupon the cutting device is fastened to the side of the threading device by screw 8,-

after which the threadingdevice with the cutting means attached thereto, is placed in the shuttle body.

he filling thread from the filling carrier or bobbin 16, is threaded through the thread ing' device 2, and through the eyelet 13 of the swinging guide, thence through the opening or eyelet 17 in the shuttle body 1, Fig. 2,

whereupon the thread is caused to normally ride or pass over the outer face ofthe wire guide 4, in the position shown by dotted lines in Fig. 6. When any undue strain is placed upon the thread 12, such as would injure the goods or work being woven, this tightening or possible back-lash of the thread will immediately cause an outward pull or swing of the eyelet portion 13 of the swinging guide 7, bringing the thread 12 into strong contact with the knife blade 10,

whereupon the thread will automatically be severed. 1

It is to be noted that i have produced a simple and eiiicient cutting means attached manufacture of the same and I, therefore, re-

serve the right to make such alterations or changes as shall fairly fall within the scope of the appended claims.

What I claim is:

1. In a shuttle, the combination with a shuttle body, of a threading device provided witha thread passagein said body, and a cutting device attached directly to the threading device and provided with a cutting blade and a swinging guide over one end of the thread passage within the shuttle body.

2. Ina shuttle, the combination with a shuttle body, of a threading; device secured to said body, a cutting blade on said body, and movable guiding means contiguous to said cutting blade and movable transverse 0t the threading device.

' 3. In a shuttle, the combination with a shuttle body, 01" a threading device provided with a thread passage secured to said body, cutting means extending practically across said passage, and movable guiding means-e2:- tending across the passage and transverse of the threading device.

i. Ina shuttle, the combination with a shuttle body, of a threading device in said body, a frame secured to the side of said threading device and provided with a knife blade extending across a portion of the threading device, and a thread guide secured at one side of the threading device and positioned to move or swing across the front end of said threading device.

5. In a shuttle, the combination with a shuttle body, 01": a threading device provided with a body in said shuttle bony, said threading device provided with a thread passage and a" stationary guide cont guous to said passage, and cutting means and unding means carried by the threading; device and 11 H 1 1 sq l-.1'1 positionct ictwctn L116 bony o. b ie tnieat U15);

device and the stationarv guide contiguous to the thread passage.

threading device andthe lugs and the stationary guide, and cutting means between the body of the threading device and the movable guidmg means.

7. In a cutting device for shuttles comprising an angle frame having; a knife blade, and v a swinging; guide fastened at one end to said frame and having near its other end an eyelet positioned contiguous to said knife blade. 8.21 cutting device for a shuttle comprising a frame having; a screw-receiving aperture and a knife blade at one end, a spring; metal swinging guide fastened to one end of the frame, said'guide provided with an eyelet portion contiguous to the knife blade, and said eyelet portion provided with an eyelet and an open guide passage communicating withthe eyelet. I

9, A cutting device "for a slnittle comprising a stationary cutting element, and a swinging; guiding element carried by said stationary cutting; element.

10. A. cutting device for a shuttle comprising a stationary cutting element, anda guiding element fastened at one end to the cutting element and 3f pted to move a s other end across ortrans fsely otthe cut-ting element.

11. A. cutting device for shuttle comprising; astationary frame having a screw-receiving aperture and an integral knife blade, a guide against said frame, andmeans fastening the'guide near one end fixedly to the frame whereby the guide may move or swing away from the frame at its other or unfastened end. i

in testimony whereof I hereunto aiiin' my si nature.

lVILLl-AM M. RQSSITEB.

combination with a y 

